Serializes Java object into JSON string using Gson.toJson() with Gson

Java Code Examples for com.google.gson.Gson.toJson()

This method to serializes the Java object into JSON string.

Adding Gson dependency into your project

Using Gradle

compile group: 'com.google.code.gson', name: 'gson', version: '2.8.5'

Using Maven

<dependency>
    <groupId>com.google.code.gson</groupId>
    <artifactId>gson</artifactId>
    <version>2.8.5</version>
</dependency>

How to use com.google.gson.Gson.toJson()

package simplesolution.dev;

import com.google.gson.Gson;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class GsonToJsonExamples {
    public static void main(String... args) {
        List<Map<String, String>> data = new ArrayList<>();
        Map<String, String> item1 = new HashMap<>();
        item1.put("name", "Sample JSON Serialization");
        item1.put("url", "https://simplesolution.dev");
        data.add(item1);

        Map<String, String> item2 = new HashMap<>();
        item2.put("name", "Java Tutorials");
        item2.put("url", "https://simplesolution.dev/java");
        data.add(item2);

        Gson gson = new Gson();
        String jsonStringFromObject = gson.toJson(data);
        System.out.println("JSON String from Object: " + jsonStringFromObject);
    }
}

Happy Coding 😊